Office chair



FIG. 1 is a left frontal perspective illustration of an office chair according to our invention;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left frontal perspective illustration of a second embodiment of an office chair according to our invention;

FIG. 8 is a side elevational view of the second embodiment of our invention, the opposite side being a mirror image thereof;

FIG. 9 is a front elevational view of the second embodiment of our invention;

FIG. 10 is a rear elevational view of the second embodiment of our invention;

FIG. 11 is a top plan view of the second embodiment of our invention;

FIG. 12 is a bottom plan view of the second embodiment of our invention;

FIG. 13 is a left frontal perspective illustration of a third embodiment of an office chair according to our invention;

FIG. 14 is a side elevational view of the third embodiment of our invention, the opposite side being a mirror image thereof;

FIG. 15 is a front elevational view of the third embodiment of our invention;

FIG. 16 is a rear elevatiional view of the third embodiment of our invention;

FIG. 17 is a top plan view of the third embodiment of our invention;

FIG. 18 is a bottom plan view of the third embodiment of our invention;

FIG. 19 is a left frontal perspective illustration of the fourth embodiment of our office chair;

FIG. 20 is a side elevational view of the fourth embodiment of our invention, the opposite side being a mirror image thereof;

FIG. 21 is a front elevational view of the fourth embodiment of our invention;

FIG. 22 is a rear elevational view of the fourth embodiment of our invention;

FIG. 23 is a top plan view of the fourth embodiment of our invention; and,

FIG. 24 is a bottom plan view of the fourth embodiment of our invention. 

The ornamental design for an office chair, as shown and described. 